/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.oozie.fluentjob.api.mapping;

import org.apache.oozie.fluentjob.api.generated.workflow.ObjectFactory;
import org.apache.oozie.fluentjob.api.generated.workflow.START;
import org.apache.oozie.fluentjob.api.dag.NodeBase;
import org.apache.oozie.fluentjob.api.dag.Start;
import com.github.dozermapper.core.DozerConverter;

/**
 * A {@link DozerConverter} converting from {@link Start} to JAXB {@link START}.
 */
public class StartConverter extends DozerConverter<Start, START> {
    public StartConverter() {
        super(Start.class, START.class);
    }

    @Override
    public START convertTo(Start source, START destination) {
        if (destination == null) {
            destination = new ObjectFactory().createSTART();
        }

        final NodeBase realChild = RealChildLocator.findRealChild(source.getChild());
        destination.setTo(realChild.getName());
        return destination;
    }

    @Override
    public Start convertFrom(START source, Start destination) {
        throw new UnsupportedOperationException("This mapping is not bidirectional.");
    }
}
